| article html file updated | 10 February 2020 22:07 CET | Update | https://www.mdpi.com/2075-4663/6/4/149 |
| article html file updated | 10 October 2019 16:20 CEST | Update | - |
| article html file updated | 28 April 2019 06:18 CEST | Update | - |
| article html file updated | 14 April 2019 02:16 CEST | Update | - |
| article html file updated | 1 April 2019 23:12 CEST | Update | - |
| article html file updated | 25 December 2018 04:24 CET | Update | - |
| article html file updated | 19 November 2018 11:11 CET | Original file | - |
| article pdf uploaded. | 19 November 2018 11:10 CET | Version of Record | https://www.mdpi.com/2075-4663/6/4/149/pdf |
| article xml uploaded. | 19 November 2018 11:10 CET | Update | https://www.mdpi.com/2075-4663/6/4/149/xml |
| article xml file uploaded | 19 November 2018 11:10 CET | Original file | - |
